Acceleration of soluble matter extraction from chicory with pulsed electric fields

Selective Extraction from Food Plants and Residues by Pulsed Electric Field

“…The effects of PEF treatment on the efficiency of soluble solid extraction from chicory tissues was discussed in [39]. The degree of tissue damage estimated from the electrical conductivity disintegration index Z [7] is presented in Figure 9.7.…”

“…PEF treatment was also applied to other tissues, such as red bell pepper and paprika, fennel, alfalfa, and red cabbage (see, e.g., [7,39]). These studies have demonstrated improvement in juice yield and extraction of dry matter, carotenoids, vitamins, sucrose, proteins, and other compounds.…”

Mass Transfer Enhancement by Means of Electroporation

“…11 were used for the estimation of the moisture effective diffusivity, by means of the least square fitting of the experimental data www.intechopen.com (Loginova et al, 2010;Lebovka et al, 2007b). Due to the simplifying assumptions taken, the solution reported in Eq.…”

“…Eq. 13 represents the modified form of the Crank solution that was applied to the extraction of soluble matter from vegetable tissue (Loginova et al, 2010).…”

“…In particular, the authors proposed that below 60 °C, the solute matter diffusion is controlled by the damage of cell membrane barrier and is therefore very high for untreated samples (≈ 210 kJ/mol) and much smaller for PEF treated samples (≈ 19 kJ/mol). Above 60 °C, the extraction process is controlled by unrestricted diffusion with small activation energy in a chicory matrix completely permeabilized by the thermal treatment (Loginova et al, 2010). (Jemai and Vorobiev, 2002).…”